# std::ranges::elements_view<V,F>::iterator<Const>::base

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< cpp‎ | ranges‎ | elements view‎ | iterator

constexpr const ranges::iterator_t<Base>& base() const & noexcept; | (1) | (since C++20)
constexpr ranges::iterator_t<Base> base() &&; | (2) | (since C++20)

Returns the underlying iterator.

1) Returns a reference to the underlying iterator.
2) Move constructs the result from the underlying iterator.

### Parameters

(none)

### Return value

1) A reference to the underlying iterator.
1) An iterator move constructed from the underlying iterator.

### Example

| This section is incomplete Reason: no example

### Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR | Applied to | Behavior as published | Correct behavior
--- | --- | --- | ---
LWG 3533 | C++20 | the const& overload of `base` returns a copy of the underlying iterator | returns a reference
LWG 3593 | C++20 | the const& overload of `base` might not be noexcept | made noexcept

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